单选题 Mary is looking for the book she lost yesterday.
A. trying to find B. trying to read C. trying to buy D. trying to borrow

【正确答案】 A
【答案解析】[解析] look for:寻找。它是活动动词,不一定有结果,进行时是其常见的形式。find是在瞬间能得到一个结果的动词。find不适合用进行时。try to find:试图找到,也就是说,这种努力不一定有结果,因此在意义上跟look for近似。read:阅读;buy:购买;borrow:借入。